<template>
  <div class="cityGreenLand-charts" ref="dom"></div>
</template>

<script setup>
import { defineProps, ref, watchEffect } from "vue"
import * as echarts from "echarts"
import "echarts-gl"
import API from '@/common/api'

const props = defineProps({
  TestMainId: {
    type: String,
    default: ''
  },
  LabFlag: {
    type: Number,
    default: 0
  },
  LabName: {
    type: String,
    default: ''
  },
  LabId: {
    type: String,
    default: ''
  },
  LabType: {
    type: String,
    default: ''
  },
})
const dom = ref(null)
// 传入数据生成 option
const optionsData = ref([])
const legendData = []
const colorList = [
  '#E44954',
  '#E3BD81',
  '#0A4FE8',
]
let currentIndex = 0;

function getNextValue() {
  let value = colorList[currentIndex];
  currentIndex = (currentIndex + 1) % colorList.length;
  return value;
}
//构建3d饼状图
const getParametricEquation = (
  startRatio,
  endRatio,
  isSelected,
  isHovered,
  k,
  height,
  i
) => {
  // 计算
  let midRatio = (startRatio + endRatio) / 2;

  let startRadian = startRatio * Math.PI * 2;
  let endRadian = endRatio * Math.PI * 2;
  let midRadian = midRatio * Math.PI * 2;

  // 如果只有一个扇形，则不实现选中效果。
  if (startRatio === 0 && endRatio === 1) {
    isSelected = false;
  }

  // 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）
  k = typeof k !== "undefined" ? k : 1 / 3;

  // 计算选中效果分别在 x 轴、y 轴方向上的位移（未选中，则位移均为 0）
  let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
  let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;
  // 计算高亮效果的放大比例（未高亮，则比例为 1）
  let hoverRate = isHovered ? 1.05 : 1;

  // 返回曲面参数方程
  return {
    u: {
      min: -Math.PI,
      max: Math.PI * 3,
      step: Math.PI / 32,
    },

    v: {
      min: 0,
      max: Math.PI * 2,
      step: Math.PI / 20,
    },

    x: function (u, v) {
      if (u < startRadian) {
        return (
          offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      if (u > endRadian) {
        return (
          offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
    },

    y: function (u, v) {
      if (u < startRadian) {
        return (
          offsetY + Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      if (u > endRadian) {
        return (
          offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate;
    },

    z: function (u, v) {
      if (u < -Math.PI * 0.5) {
        return Math.sin(u);
      }
      if (u > Math.PI * 2.5) {
        return Math.sin(u);
      }
      return Math.sin(v) > 0 ? 1 * height : -1;
    },
  };
}
// 生成模拟 3D 饼图的配置项
const getPie3D = (pieData, internalDiameterRatio) => {
  let series = [];
  let sumValue = 0;
  let startValue = 0;
  let endValue = 0;
  let legendData = [];
  let k =
    typeof internalDiameterRatio !== "undefined"
      ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
      : 1 / 3;

  // 为每一个饼图数据，生成一个 series-surface 配置
  for (let i = 0; i < pieData.length; i++) {
    sumValue += pieData[i].value;

    let seriesItem = {
      name:
        typeof pieData[i].name === "undefined"
          ? `series${i}`
          : pieData[i].name,
      type: "surface",
      parametric: true,
      wireframe: {
        show: false,
      },
      pieData: pieData[i],
      pieStatus: {
        selected: false,
        hovered: false,
        k: k,
      },
    };

    if (typeof pieData[i].itemStyle != "undefined") {
      let itemStyle = {};

      typeof pieData[i].itemStyle.color != "undefined"
        ? (itemStyle.color = pieData[i].itemStyle.color)
        : null;
      typeof pieData[i].itemStyle.opacity != "undefined"
        ? (itemStyle.opacity = pieData[i].itemStyle.opacity)
        : null;

      seriesItem.itemStyle = itemStyle;
    }
    series.push(seriesItem);
  }

  // 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
  // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation，也就是实现每一个扇形。
  for (let i = 0; i < series.length; i++) {
    endValue = startValue + series[i].pieData.value;
    series[i].pieData.startRatio = startValue / sumValue;
    series[i].pieData.endRatio = endValue / sumValue;
    series[i].parametricEquation = getParametricEquation(
      series[i].pieData.startRatio,
      series[i].pieData.endRatio,
      false,
      false,
      k,
      // 调整扇形高度
      i === 0 ? 10 : 10,
      i,
      series[i].pieData.value
    );

    startValue = endValue;

    legendData.push(series[i].name);
  }
  return series;
}
const initData = async () => {
  const params = { TestMainId: props.TestMainId, LabFlag: props.LabFlag, LabId: props.LabId, LabName: props.LabName, LabType: props.LabType }
  const res = await API.GetHeadOfficeDataCylindricalChart(params)
  if (res.Tag) {
    optionsData.value = res.Data.CompanyCount.map((e) => {
      const json = {
        name: e.CompanyName,
        value: e.TotalCount,
        itemStyle: {
          color: e.CompanyName === '其他' ? "#86F280" : getNextValue(),
        }
      }
      return json
    })

    legendData.value = optionsData.value.map((e) => e.name)
    loadData()
  }
}
watchEffect(() => {
  console.log(props.LabFlag);
  console.log(props.TestMainId);

  initData()
})
const loadData = () => {
  const series = getPie3D(optionsData.value, 0.6); // 可做为调整内环大小 0为实心圆饼图，大于0 小于1 为圆环
  series.push({
    name: "pie2d",
    type: "pie",
    label: {
      opacity: 1,
      fontSize: 14,
      lineHeight: 20,
      textStyle: {
        fontSize: 14,
        color: "#fff",
      },
    },
    labelLine: {
      length: 10,
      length2: 20,
    },
    startAngle: 90, //起始角度，支持范围[0, 360]。
    clockwise: false, //饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式
    radius: ["0%", "65%"],
    center: ["50%", "60%"],
    data: optionsData.value,
    itemStyle: {
      opacity: 0,
    },
  });
  console.log(JSON.stringify(legendData.value));
  // 准备待返回的配置项，把准备好的 legendData、series 传入。
  let option = {
    legend: {
      data: legendData.value,
      orient: "horizontal",
      x: "right",
      y: " center",
      top: '5%',
      textStyle: {
        color: "#A1E2FF",
      },
      show: true,
    },
    animation: true,
    tooltip: {
      show: false,
      textStyle: {
        fontSize: 14,
      },
    },
    title: {
      x: "center",
      top: "20",
      textStyle: {
        color: "#fff",
        fontSize: 22,
      },
    },
    backgroundColor: "rgab(0,0,0,0)",
    labelLine: {
      show: true,
      lineStyle: {
        color: "#7BC0CB",
      },
      normal: {
        show: false,
        length: 10,
        length2: 10,
      },
    },
    label: {
      show: true,
      position: "outside",
      // formatter: "{b} {d}%",
      formatter: function (optionsData) {
        console.log(optionsData);
        return (
          "{name|" +
          optionsData.name +
          "}" +
          " {value|" +
          optionsData.percent.toFixed(0) +
          "%}"
        );
      },
      rich: {
        name: {
          fontSize: 14,
          color: "#ffffff",
        },
        value: {
          fontSize: 14,
          color: "#ffffff",
        },
      },
      textStyle: {
        color: "#fff",
        fontSize: "14px",
      },
    },
    xAxis3D: {
      min: -1,
      max: 1,
    },
    yAxis3D: {
      min: -1,
      max: 1,
    },
    zAxis3D: {
      min: -1,
      max: 1,
    },
    grid3D: {
      show: false,
      boxHeight: 2,
      top: '0%',
      left: "0%",
      // bottom: "60%",
      // environment: "rgba(255,255,255,0)",
      viewControl: {
        distance: 160,
        alpha: 30,
        beta: 15,
        autoRotate: true, // 自动旋转
      },
    },
    series: series,
  };
  const charts = echarts.init(dom.value)
  option && charts.setOption(option)
}
</script>
<style lang="scss">
.cityGreenLand-charts {
  height: 100%;
  width: 100%;
}
</style>
